diff --git a/src/bin/eolian/eo1_generator.c b/src/bin/eolian/eo1_generator.c
index a2388b5ea0..6573d7f311 100644
--- a/src/bin/eolian/eo1_generator.c
+++ b/src/bin/eolian/eo1_generator.c
@@ -253,6 +253,7 @@ eo1_header_generate(const char *classname, Eina_Strbuf *buf)
    if (!eolian_class_exists(classname))
      {
         ERR ("Class \"%s\" not found in database", classname);
+        free(tmpstr);
         return EINA_FALSE;
      }